Portugieser Chronograph

18 ct 5N gold case, Automatic, self-winding, Diameter 41.0 mm, Black alligator leather strap by Santoni, Strap width 20.0 mm.

Case
18 ct 5N gold case
Diameter 41.0 mm
Height 13.0 mm
See-through sapphire glass back
Water resistance 3.0 bar

Movement
69355 Calibre
IWC-manufactured movement
Automatic, self-winding
46 hours Power Reserve
Frequency 28'800 VPH (4 Hz)
205 Components
27 Jewels
Côtes de Genève

Features
Small hacking seconds
Sapphire glass, convex, antireflective coating on both sides
Chronograph function with minutes and seconds

Reference
IW371610